represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
      the Work and Derivative Works thereof.

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      "Contribution" shall mean any work of authorship, including
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      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
      the Work and Derivative Works thereof.

      "Contribution" shall mean any work of authorship, including
      the original version of the Work and any modifications or additions

      represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
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      the original version of the Work and any modifications or additions

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      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
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      the original version of the Work and any modifications or additions

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        java-version: 11
    - name: Setup Gradle
      uses: gradle/actions/dependency-submission@v3
      with:
        # Action runs a custom dependencies task that fails with config-cache on Gradle 8.7 (works with 8.6)
        additional-arguments: --no-configuration-cache
      env:
        # Exclude some projects and configurations that should not contribute to the dependency graph

import org.apache.maven.api.services.model.ModelVersionParser;

import static org.apache.maven.internal.impl.Utils.nonNull;

/**
 * A wrapper class around a resolver version that works as model version parser as well.
 */
@Named
@Singleton
public class DefaultVersionParser implements VersionParser {
    private final ModelVersionParser modelVersionParser;

    @Inject

from dirty_equals import IsDict
from fastapi.testclient import TestClient

from docs_src.custom_request_and_route.tutorial002 import app

client = TestClient(app)


def test_endpoint_works():
    response = client.post("/", json=[1, 2, 3])
    assert response.json() == 6


def test_exception_handler_body_access():
    response = client.post("/", json={"numbers": [1, 2, 3]})
    assert response.json() == IsDict(
        {

And of course, it supports the same:

* data validation
* data serialization
* data documentation, etc.

This works the same way as with Pydantic models. And it is actually achieved in the same way underneath, using Pydantic.

!!! info
    Keep in mind that dataclasses can't do everything Pydantic models can do.